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What if there is a power failure, or you are biking in the middle nowhere and you have to charge your cell phone? We have the perfect and simple DIY hack for you.

Charge your phone on the go! Bicycle dynamos are nothing new, but charge-while-you-ride technology has improved by leaps and bounds in the last few years. You can build your own phone charger that works with a bicycle dynamo. Your muscles produce the energy. Cycle your phone to a full battery!

At the Smart Citizen Lab of Waag we teach you how to build and use your own DIY tools. With simple interventions you can improve your daily live easily.

Join our workshop; bring your bike, your ‘dead-battery phone’ and a lot of enthusiasm! All skill-levels are welcome. At the end of the evening you’ll go home with your own USB phone charger.